What research technique is crucial to drawing the conclusion that the independent variable caused the change in the dependent variable?
A) random selection
B) random assignment to groups
C) double-blind experiment
D) quasi-experiment

Question

Quizplus · Accepted Answer

Random assignment to groups is the technique that ensures that the groups being compared in an experiment are similar except for the independent variable. This technique helps to establish a cause-and-effect relationship between the independent variable and the dependent variable. Random selection helps to ensure that the sample is representative, double-blind experiment helps to reduce bias, and quasi-experiment lacks the manipulation of the independent variable, making it difficult to establish causation.

What Research Technique Is Crucial to Drawing the Conclusion That